# quadrantal angles

- ángulos cuadrantes

*English-Spanish mathematics dictionary.
James G., James R.C..
1964.*

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**Quadrantal versor**— Versor Ver sor, n. [NL., fr. L. vertere, versus, to turn. See {Version}.] (Geom.) The turning factor of a quaternion. [1913 Webster] Note: The change of one vector into another is considered in quaternions as made up of two operations; 1st, the… … The Collaborative International Dictionary of English**Versor**— Ver sor, n. [NL., fr. L. vertere, versus, to turn. See {Version}.] (Geom.) The turning factor of a quaternion. [1913 Webster] Note: The change of one vector into another is considered in quaternions as made up of two operations; 1st, the rotation … The Collaborative International Dictionary of English**Triquadrantal**— Tri quad*ran tal, a. [Pref. tri + quadrantal.] (Spherical Trig.) Having three quadrants; thus, a triquadrantal triangle is one whose three sides are quadrants, and whose three angles are consequently right angles. [1913 Webster] … The Collaborative International Dictionary of English**Pedro Nunez (Nonius)**— Pedro Nunez † Catholic Encyclopedia ► Pedro Nunez (Pedro Nonius). Mathematician and astronomer, b. at Alcacer do Sol, 1492; d. at Coimbra, 1577. He studied ancient languages, philosophy, and medicine at Lisbon and mathematics at… … Catholic encyclopedia**quadrant**— noun Etymology: Middle English, from Latin quadrant , quadrans fourth part; akin to Latin quattuor four more at four Date: 15th century 1. a. an instrument for measuring altitudes consisting commonly of a graduated arc of 90 degrees with an index … New Collegiate Dictionary**Classical Hamiltonian quaternions**— For the history of quaternions see:history of quaternions For a more general treatment of quaternions see:quaternions William Rowan Hamilton invented quaternions, a mathematical entity in 1843. This article describes Hamilton s original treatment … Wikipedia**quadrant**— noun technical 1》 each of four parts of a circle, plane, body, etc. divided by two lines or planes at right angles. 2》 historical an instrument for taking angular measurements, consisting of a graduated quarter circle and a sighting mechanism. 3》 … English new terms dictionary**quadrant**— n. 1 a quarter of a circle s circumference. 2 a plane figure enclosed by two radii of a circle at right angles and the arc cut off by them. 3 a quarter of a sphere etc. 4 a a thing, esp. a graduated strip of metal, shaped like a quarter circle. b … Useful english dictionary